The Peale-Sellers Family Collection, held at the APS Library, is the world's largest archival collection related to the Peales. Two recent American Philosophical Society Museum exhibitions, Curious Revolutionaries and Conservation and the Peale-Sellers Family Collection, included selected items from the collection. The conservation staff reviewed the selected items to ensure that they were stable enough to display for months without fading, discoloring, or suffering physical damage. When books or manuscripts could not be exhibited without conservation treatment, conservators repaired or stabilized them. Conservation of natural specimens and cultural artifacts is essential today, as it was for Charles Willson Peale when he opened his museum in Philosophical Hall. Renée Wolcott tells readers in her introduction, "As the owner of the nation's first natural history museum, Charles Willson Peale served as both curator and conservator, concerned with selecting specimens for exhibition and preserving them for future museum visitors. He was also his own archivist, saving letters, diaries, and museum records that passed through his family for generations before becoming enshrined in the APS Library. This book examines the materials Peale and his family have left us, considers their preservation challenges, and discusses the evolution of conservation care for archival collections. Case studies of conservation treatment for six historic Peale-related artifacts illustrate some of the ways in which today's conservators preserve the materials of the past for the sake of the future"--back cover.